Adjusting plug for measuring chambers



Mara; 25, 1"24." A Magma W. H. JUERGENS ADJUSTING PLUG FOR MEASURING CHAMBERS INVENTOR.

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Patented Mar. 25, 1924.

WINFRED H. .TUER-GENS, 0F CLEVELAND, OHIO, ASSIGNOR TO THF. H. .T. MCCUE COT. PANY, OF'CLEVELAND, OHIU, A CR-PORATION OFOHIO.

ADJUSTING PLUG FOR MEASURING CHAMBERS.

Application iled October 3G, 1522. Serial No. 597,865.

T'o'all whom t may concern.'

Be it known that I, lVrNrnnD H. JURK- GENs, a citizen ot the United States, and a resident of Cleveland, county o'f Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Adjusting Plugs for Measuring Chambers, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, soV as to distinguish it from other inventions.

The present invention relates to an iinproved adjustable measuring plug which may be used in various containers, valve chambers and thel like for the purpose of varying the available content of such chamber and in this way adjusting the content oi'` the chamber as may be desired. It is particularly adapted for use in measuring valves such as are used in draft arms for soda fountains where a measured amount 01"" syrup is to be discharged into the glass for the making of the beverage with carbonated water. In such cases it is highly desirable to be able to vary within certain limits the amount of extract which is discharged, because of the varying sizes of glasses which are used. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mecha- Vnism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is a central longitudinal section through a chamber in which my adjustable plug (in elevation) is received; Fig. 2 is acentral longitudinal section through my improved plug; Fig. 3 is a section on the line 3-3, in Fig. 2; and Fig. 4 is an end elevation of the same.

In Fig. 1 I have shown a chamber 1, in which is mounted my improved adjusting plug 2. this figure being shown for the pur- Y pose oit illust-rating the operation of the plug. The plug itself consists of a core 3 and a movable cylinder 4 mounted on the core 3 and movable lengthwise thereof to increase or decrease the entire volume or" the plug as a whole. It will be evident that movement of plug 4 to the right, as shown in Fig. 1, will increase the overall length and bulk of the plug, and will correspondingly decrease the amount of liquid which can be held in the chamber 1. Also by moving the plug 4 to the lett, the capacity of the chamber 1 is increased.

The construction of the plug is shown in Fig. 2. It consists of a bolt 5 provided with an enlarged headf and threaded outer ,end 7. This bolt is received in a core 8 which is spaced from the threaded portion of the bolt 7 to receive therebetween a coil spring 9 which operates against a shoulder 10 on the core, and the head 11 on the tubular cylinder 4, which lits snugly, but slidably, over the outer wall of the core 8. Relative rotation between the cylinder 4 and the core 8 is prevented by the engagement of a turned-down lug 13 on the cylinder in a slot 14, formed in the core 8 parallel with the axis thereof.

The head ci' the member 8 is provided with an enlarged flange 15, which is recessed on its inner face to receive a washer 16, which is pressed snugly against the wall of the chamber 1, in which. the plug is inserted to make a liquid-tight joint. A second washer or packing 12 is mounted between the iead of the bolt and the core 3. The head G of the bolt 5 is provided with the usual slot 18, in which a screw driver may be inserted `for turning this bolt, and in this way adjusting or varying the volume or bulk of the plug as may be required.

The operation oit my plug is as follows It is first inserted into the wall of the measuring chamber in the manner indicated in Fig. 1. Adjustment of the screw 5 will then force the cylinder 12 outwardly or inwardly, depending upon the direction of rotation of the screw 5, and as this cylinder cannot turn, because of the engagement of the lug 18 in the slot 14, it must move longitudinally, and in this way any desired adjustment may be given to the over-all length and volume of the plug.

@ther modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the' mechanism herein disclosed, provided the means stated by any of the Jfollowing claims or the equivalent oi such stated means be employed.

I therefore particularly point out and dis tinctly claim as my invention l. An adjustable measuring plug comprising a body member provided with means adapting the une to be engaged in the Wall of a chamber, a tubular cap slid-ably and snugly fitting over the same, and means adapted to variously position saidcap with respect to said member.

2. An adjustable measuring plug comprising a body member provided with means adapting the same to be engaged in the Wall of a chamber, a tubular cap slidably but nonrotatably engaging over said body member, and means adapted to variously position said cap With respect to said body member.

3. An adjustable measuring plug comprising a body member provided with means adapting the same to be engaged inY the Wall of a chamber, a tubular cap slidably but `nonrotatably engaging over said body member, and an adjusting screw rotatably mounted in said body member, said screw also engaging said cap and being adapted to vary the position of the same with respect to said body member. e i

4. An adfustable measuring plug compris ing a body member provided with a threaded portion at one end adapting the same to be engaged in the wall of a chamber, said member having an opening longitudinally therethrough, a tubular 'cap,r said cap engaging slidably but nonrotatably over said body member and having a threaded opening aligned with such opening through said body member7 a boltextending through such opening in said body member and engaging in such threaded opening in said cap, said bolt being rotatable from outside o said body member to variously position said cap with respect to said body member, anda spring disposed between said capV and body inember, said spring acting on said bolt to hold the same snugly in Vsaid body member.'

Signed by me, this 2a day of October, 1922. Y

XVINFRED H. JUERGENS. 

